Electronic Devices With Optical Markers

2. The electronic device defined in claim 1 wherein the marker is configured to form a two-dimensional bar code.

3. The electronic device defined in claim 1 wherein the marker is configured to form a mixed reality optical marker that reveals information on a size and orientation of the electronic device housing when the captured images are processed by the mixed reality device.

4. The electronic device defined in claim 1 wherein the patterned retroreflective coating comprises a polymer layer, first retroreflective particles embedded in the polymer layer, and second retroreflective particles that protrude from the polymer layer.

5. The electronic device defined in claim 4 further comprising an additional marker formed on the second surface.

6. The electronic device defined in claim 5 wherein the additional marker is one of a plurality of additional markers formed in an additional ring that runs along a periphery of the second surface.

7. The electronic device defined in claim 1 wherein the patterned retroreflective coating comprises a textured surface having individual angled surfaces.

8. The electronic device defined in claim 7 wherein the textured surface is formed on a substrate and the patterned retroreflective coating further comprises retroreflective particles embedded in the substrate.

9. The electronic device defined in claim 8 wherein the patterned retroreflective coating further comprises retroreflective particles that protrude from the textured surface.